Marie Read / Ruby-throated Hummingbird (Archilocus colubris), male flying in to feed from cardinal flowers (Lobelia cardinalis) New York, USA. August.

Tim Fitzharris / Ruby-throated Hummingbird (Archilochus colubris) females feeding on flower nectar, Texas

Tim Fitzharris / Ruby-throated Hummingbird (Archilochus colubris) female and Bumblebee (Bombus sp) flying, Arkansas

Petra Wegner,Petra Wegner / Cavalier King Charles Spaniel, male with ruby coat

Tim Fitzharris / Ruby Beach, Olympic National Park, Washington

Petra Wegner / Three Cavalier King Charles Spaniels, tricolour and blenheim sitting on beach chair, ruby on deckchair. Property released.

Petra Wegner / Cavalier King Charles Spaniel, ruby, running out of the sea wearing a lifejacket / life vest.

Petra Wegner / Cavalier King Charles Spaniels, ruby and tricolour, sitting in snow.

Rolf Nussbaumer / Ruby-throated Hummingbird (Archilochus colubris), male in flight feeding on flower. Hill Country, Central Texas, USA, August.

Petra Wegner / Five Cavalier King Charles Spaniel sitting, black-and-tan, tricolour, blenheim and ruby coated, sitting in autumn leaves

Petra Wegner / Cavalier King Charles Spaniel, ruby coated, being showered / bathed, in a bathtub. Sequence 6/16. Model released

Floris van Breugel / View of Pacific coastline in fog and mist, Ruby Beach, Olympic National Park, Washington, USA, June 2008